import React from 'react'
import './app.css'

// App: React.FC<{}> 类型约束 FC-function component
// export const pp: number = 1 类型正确
// export const Ap: React.FC<{}> = () => {
//     return 2
// } 类型错误
export const App: React.FC<{}> = () => {
    return (
        <div className='app'>
            App
        </div>
    )
}